For my ex car with VKool, using Smart Tag was a touch-and-go situation (no pun intended). I always had to drive very slowly, put the Smart Tag close to windscreen (I noticed the higher the Smart Tag on the windscreen, close to the rearview mirror, the easier it got detected). And I had to start placing the Smart Tag a few car lengths from the gantry or it would not detect.
Despite this, there were times the barrier would not lift and I had to wait for assistance, or reverse back and move forward again if there was no car behind me.
The easiest way to overcome this was to wind down my window and dangle the smart tag above the car roof - yeah, not glamourous.

FYI, I have friends in Singapore who have to cut a "hole" at the location where they mount their In-vehicle Unit (something like smart tag used to pay for road charge and parking).

Had VKool and 3M on previous cars - no issue and no distortion after 5 years, 9 years, respectively when I sold them.

The problem with cheap tints could be due to low IR rejection. Also, removing of tint at rear windshield might damage the demister strips.

Bro, mind sharing the cost? This is what I would be looking for - good heat rejection but JPJ friendly.

Dear all, anyone seen how Puspakom checks the VLT of our windows?
Do they use the VLT meter all the time, or only on those windows that they think will fail - which means can still pass for the front windscreen.

Asking because, if I choose 3M crystalline 70 for the front windscreen, its VLT is 68% (source: 3M website). When applied, the VLT falls further.

The front two windows are easier and cheaper to replace, so I won't mind using Crystalline 40 (VLT 39% vs min 50% JPJ rule).

Thank you for your answer. I've not got any quotation yet.

Bro, what is the exact spec? Crystalline has 40/50/60/70/90 VLT.
And why not use Crystalline 40 for rear windscreen as its TSER is 59% compared to 47% for Ebony, and IR rejection 97% vs none for Ebony (source: 3M website).


Thank you for sharing.
I'm surprised you passed, since your front sides and windscreen have clearly failed. Maybe they use the excess VLT at the rear to compensate for front

I am contemplating using Crystalline 70 for front w/screen (which will still fail inspection as its VLT is 68% even before installation). For the front side windows, it will be a problem as I want a safety film and there are only two options: Scotchshield 40 (too dark) and Scotchshield 70 (too bright).

For rear windows and ws, you can consider crystalline 40 as jpj rule says its 30%vlt.

If you read the specs at 3M website, you'll see that darker tints have higher solar rejection rate.

Option 1 can be 70 50 40 40. The rear windows and rear w/screen needs 30%, iirc.
Front ws is 70%, front windows 50%. Technically, you will fail VLT even with option 1 as all untinted windows do not have 100%vlt to begin with.
And I'm sure the tint shop will tell you "bro, two tone tints not nice lah".

I'd go for option 2 since I value safety. The recent acid throwing case enforces this belief.

Google is your friend, my friend.
Acid case:
The Star

The VLT requirement from JPJ is 70% front ws, 50% front windows, and 30% for the rear windows and rear ws.
Crystalline 40/50/70 have 39%/50%/68% VLT - and this is before sticking on your glass. As mentioned in the earlier post, your original window glass does not have 100% VLT. Once you stick the tint film on the windows, will not the VLT drop further?

Dear all,
So far, I've only heard of people applying security film on windows, never on the front windscreen. I think it is the fear of not being able to rescue people in the event of an accident.

As I have heard cases of windscreen kena poked by metal pieces, etc, would it not be safer to apply security film on front windscreen?

Thank you for the explanation. Now I understand about the security film not able to bend properly. Don't agree with the second part. Having a security tint there could mean the metal missing your heart by a whisker, which could mean living vs dying.

Thank you for the explanation. Come to think of it, many years back a solar film installer refused to tint my front windscreen using a single piece of film. "Can't be done unless we cut a line to make it two pieces", he said.

Mind sharing what car, what specs you choose and the price? Also, do update if it interferes with Smart Tag.

It seems your security film with 50% VLT is not Crystalline, just normal Scotchshield, as Scotchshield Crystalline Security comes in 40 and 70% VLT.

You gain only 2% TSER but you gain many more % chance of getting stopped at road blocks because the first thing they try to see is your face through the windscreen.

This is the dilemma. As it is, Crystalline security film only comes in 70 and 40% VLT. The former will be too bright for the front windows, the latter too dark for JPJ's regulation of 50% VLT for front windows. From what I read here, if the front windscreen is not too dark, the chances of being pulled over are very low.

Is it possible to have bubble-free tinting? In all my cars, tiny bubbles will appear in a matter of time and they will become more and more and eventually stop growing in numbers (or maybe I would have lost count).
And so far they only happen to side windows and rear windscreen, never on front windscreen.

I usually ignore them, as re-tinting will most likely create the same results, if not worse.

Thank you for your confirmation.

I see. Thank you for the fdback.

I'd go for third option (assuming rear w/s is using Crystalline 40), but will hunt for lower price.

I put a clear tint. Supposed to reduce uv effect and scratches.

Whenever I read about photochromic tint, I will think how fast the tint will react, when you enter a tunnel in a broad daylight. As it is, not all tunnels are lit according to the norm (bright lighting as you enter the tunnel, to allow your eyes to adjust to what is coming).

Cheap. Please make sure they are authorised dealer.